Clay County, Tennessee
County seat: Celina · Population 7,821 (2025) · 237 sq mi
Clay County is the 90th most populous of Tennessee's 95 counties, with 7,821 people (2025 estimate). Its county seat is Celina. It is part of the Middle Tennessee region, one of the 3 Grand Divisions of Tennessee. The map shows its 1 city or town and the 7 neighboring counties.
Clay County facts
- County seat
- Celina
- Population (2025 estimate)
- 7,821 +3.2% since 2020
- Land area
- 237 sq mi 84th largest of 95
- Water area
- 23 sq mi
- Population density
- 33 per sq mi
- Established
- 1870
- Same name
- One of 18 Clay Counties in the US
- Named after
- Henry Clay American politician from Kentucky (1777-1852)
- Largest city
- Celina 1,412
- Median household income
- $39,972
- Cities and towns
- 1
- ZIP codes
- 7
- Time zone
- Central
- FIPS code
- 47027
Cities and towns in Clay County
Clay County has 1 incorporated place. Populations count the people living inside Clay County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Celina (county seat) | City | 1,412 |
ZIP codes in Clay County
7 ZIP codes reach into Clay County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 37150 also Macon and Jackson counties
- 38541 also Overton County
- 38551 also Jackson County
- 38568 also Overton and Jackson counties
- 38573 also Overton and Pickett counties
- 38575
- 38588 also Jackson and Macon counties
Population of Clay County, 2020–2025
Clay County grew by 242 people (+3.2%) between April 2020 and July 2025: 389 more deaths than births and a net gain of 626 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 7,588 |
| 2021 | 7,586 |
| 2022 | 7,621 |
| 2023 | 7,666 |
| 2024 | 7,810 |
| 2025 | 7,821 |
Neighboring counties
- Jackson County southwest · 12,466 people
- Overton County southeast · 23,787 people
- Monroe County, Kentucky northwest · 11,191 people
- Macon County west · 27,663 people
- Cumberland County, Kentucky northeast · 5,992 people
- Pickett County east · 5,219 people
- Clinton County, Kentucky northeast · 9,139 people
Printable Clay County map
The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.
- PDF (Letter) (74 KB)
- PNG (2400 px) (65 KB)
Paste this code to embed the map on your site:
Sources
- Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files (1:500,000).
- Population: Census Bureau county and city estimates, Vintage 2025. CDP populations: American Community Survey 2020–2024.
- Places and ZIP codes: Census Bureau 2026 Gazetteer and 2020 ZIP Code Tabulation Area relationship files.
- County seat, founding year and name origin: Wikidata (CC0), checked against state sources.
Back to the Tennessee county map with all 95 counties. Found an error? Tell us.